If you take it apart and post some pics it would be easier to advise you. I'm no expert, but it sounds like it should be a fairly simple job. If you are putting it on a display base you could hide the power lead under the car, out the back of the base and into the wall. You'd have to be careful though, you don't want to blow the LED's. Does the unit run on a 9v battery? If so, you can buy a 9v power source to rig the wiring too.